Rainfall washed out many roads in the area, and eyewitness video showed torrents of rainwater rushing down mangled pavement. More than 60 sinkholes were reported as the flooding intensified, according to local media reports.

The National Weather Service issued a flash flood emergency for portions of Houghton County early Sunday, warning residents not to travel in the area unless they were under an evacuation order or fleeing flooding.

6/17/2018 07:11 A.M. EDT: Flash Flood Emergency for southern and central Houghton County. THIS IS A PARTICULARLY DANGEROUS SITUATION! Law enforcement reports that many area roads are impassable and are covered by debris. pic.twitter.com/cEdUOFWO3r